Uber and Lyft are loss making experiments. Whereas Infosys and TCS are profitable corporations, responsibly hiring hundreds of thousands of people (which they do not plan to fire impulsively like Uber), bringing in huge volumes of trade revenue to India for over a decade.

Uber and Lyft use contract workers, rather than getting people on their payroll. Infosys and TCS hire freshers on bonds at salaries that are not very high, but hire thousands every year on their payroll in a country where IT engineering programs have near 100% placements. If those engineers want to work for themselves or other non-corporates, no one is stopping them.